putin would call it an act of self-defense. to save what he calls russian compatriots from the threat of those anti-russian agents emanating from kiev. now, that's very much part of the old soviet playbook. to justify military intervention. we've talked about that before. we've seen that many times in the past. and reporters who are there on the ground have seen absolutely no such threats to ethnic russians. but according to many analysts we've talked to here in moscow. putin does tend to see the new pro-western government in kiev as posing an existential threat toe his interests in ukraine. meaning crimea, they say, gives put than essential warm water port. it gives him that base for his black sea fleet. and he's apparently now made that cost-benefit calculation, that taking crimea back is actually worth the risk. he's not worried, apparently, about the consequences. be that half of the g-8 nations don't show up in sochi or that russia is somehow slapped with some form of sanctions. putin, we're told doesn't doesn't believe th